I do not answer numbers or calls that I do not recognize. I hooked up to fax machine and/or block number. This is a San Antonio Texas number. Scammers.
Called and asked for my adult son; I said he didn't live here, and they thanked me and said they'd remove my number. Knowing my son had to let some bills slide when he lost his job (gone too much when he had colon cancer), I assumed it is a debt collector.